Door-sill.



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DOOR SILL.

.APPLICATION FILED IUNE 12, 1916.

Patented Dec. 12, 1916.

@140cm/130x SAMUEL J. WINTERS, OF PLYMOUTH, MICHIGAN.

noon-sini..

Specification of Letters Patent.

Patented Dec. 12, 19115.

Application filed June 12, 1916. Serial No. 103,665.

To all whom t may concern Be it known that I, SAMUEL J. Win'rnns, acitizen of the United States, and residing at Plymouth, in the county ofl/Vayne and State of Michigan, have invented a new and ImprovedDoor-Sill, of which the following is a specification.

This invention relates to a metal door sill, and among its importantfeatures is the provision of a hollow sill of such nature as to restflat upon the upper surface of the rough flooring and to overlap the topflooring whereby extra carpenter worlr is avoided; the invention alsoconsists in provision of nailing blocks in the outer ends of the hollowsill whereby the door jamb may be readily secured in place withoutspecial cutting and tting.

rlhe invention further consists in the details of construction shown,described and claimed.

ln the drawings, Figure 1 is a transverse section through the sillshowing its relation to adjacent elements. Fig. 2 is a plan view of thesill, parts being broken away. Fig. 3 is a fragmentary perspective viewof the sill taken from a position which corresponds to a point in theinterior of the building or room into which the door opens.

1 and 2 indicate, respectively, the rough flooring and the top or finishflooring-as will be observed, the former preferably extendssubstantially to the front face 3 of the wall wherein the sill is to beused, whereas the top flooring terminates at about the inner face of thedoor t which swings inwardly (to the right, Fig. 1) in the customarymanner.

Resting on the upper surface of the rough flooring is a hollow sill,preferably of metal, comprising a base plate 8 and a tread plate 9 thatare joined by an inner longitudinal wall 10 which may abut against theface of the top flooring. These plates are also joined by an outer wall12 which may be extended below the plate 8 at 13; the plates 8, 9 andthe wall 12-13 may be extended laterally at each end of the door openingfor a distance substantially equal to the corresponding dimension of thefront board 14 (Fig. 1) of the casing and may merge into the end wall15, thus forming a box-like projection, the inner face of which is inline with the outer surface of the wall. A short distance from each endthe plates 8, 9, 10

and 12 are connected by the cross walls 16-thus open chambers are formedwherein wooden nailing blocks 18 of appropriate size and shape may beinserted, these blocks being preferably retained by nails or screws 19that pass upwardly through holes in the plate 8, whereby loss inshipment may be avoided. The plate 9 is preferably inclined upwardly andinwardly to a point somewhat to the rear of the front edge of the doorwhen the latter is closed, which gives water an opportunity to freelydrip from the door and prevents it from driving in beneath the latter;and the upper surface of this plate may be roughened or corrugated asshown at 20 (Fig. 2) for obvious reasons. At its inner edge the plateprojects over the upper surface of the top flooring in the form-of atapered lip 21.

For the purpose of further strengthening the tread 9, it may beconnected to the wall 8 at intervals by abutments 22; and it is obviousthat the lateral extension of the plates 8, 9 and 13 beyond the edges ofthe door opening may be omitted-this co1i struction being, for example,particularly adapted for freight cars. Other changes in the details ofthe device may, of course, be made, and I do not therefore wish to belimited except as indicated by the subjoined claims.

1. A door sill comprising a base plate and a tread plate spaced fromeach other and connected together, and nailing blocks interposed betweenthe plates at their ends whereby the casing of the door in which thesill islfo be used may be readily attached to the s1 2. A metal doorsill comprising a base plate and a tread plate spaced from each otherand connected together, nailing blocks interposed between the plates attheir ends whereby the casing of the door in which the sill is to beused may be readily attached to the sill, and means for retaining thenailing blocks in position in respect to the plates whereby they areprevented from dropping out in transportation.

3. A door sill comprising a base plate and a tread plate spaced fromeach other and connected together, nailing blocks interposed between theplates at their ends whereby the casing of the door in which the sill isto be used may be readily attached to the sill, and

a tread plate spaced from each other and,

connected together, nailing blocks interposed between the platesy attheir ends whereby the casing ofthe door in which the sill is to be usedmaybe readily attached' tothesill', andl a cross wall joining the platesnear each end whereby the nailing blocks. arev Vprevented from beingdriven inwardly.

5. A hollow door sill` comprising, a base plate and. a tread platespaced therefrom, a`

nailing piece interposed between the plates, an outer longitudinal walljoiningjthebase plate and tread plate, said outer wallv and said treadplate being extendedjbeyond the nailing block and being joined by atransversely extending end wall Vwherebyl the outer portion of theVnailing block is concealed when the sill is in use.

Y6. Asfan article of manufacture, a. door.. sill comprising a metal.tread plate and wooden nailing pieces `located beneath thc ends of saidtread plate and means whereby said nailing pieces are prevented frommovement relative to said tread plate whereby the casing of the door inwhich the sill is to be used may be readily nailed to the sill.

7,. As. an article of manufacture,v a metal door sill including a treadplate, said sill being shaped to, form sockets at its ends for thereception of wooden nailing pieces to which the casing of the door inwhich the sillis to be used may be readily nailed.

8. As, an (nticle of manufacture, a door silly comprising a metal treadplate,y and a wooden nailing piece located; beneath, the tread plate andterminating substantially at one end face thereof, and means wherebysaid nailing piece is prevented from movement relative to said treadplate, whereby the casing ofy the door in which the sill is to be usedmay be readily nailed to the sill.

In testimony whereofl I sign this specilication.

SAMUEL J. WINTERS.

Copies of vthis patent may; be obtainedyfor vef cents 242,11, byaddressing the Commissioner ofv Patents,

i Washington, D. C.

